Transfer Issue
Arent you a scientist? How many thousands of an inch clearance is needed to allow gas to pass? Its not like your primary is breathing like the motor, its just heating up and the air or gases if you prefer are expanding. Its not like theres a huge amount of volume or pressure.
Tourer
Joined: Jun 2017
Posts: 494
Likes: 220
From: Qld, Australia
Arent you a scientist? How many thousands of an inch clearance is needed to allow gas to pass? Its not like your primary is breathing like the motor, its just heating up and the air or gases if you prefer are expanding. Its not like theres a huge amount of volume or pressure.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,897
Likes: 8,002
From: poway
So you tried one with the flat and it did not work?
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The flat just never seemed necessary to me. If anything, machining or grinding just one side of the rod could cause it to warp some. Not saying that it ever did, just a possibility.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,897
Likes: 8,002
From: poway
While I can understand that the flat is not needed, I was just questioning the preference for the "non flattened" rod. Was it a case where the flatten rod did not work or simply an observed preference.
If the rod were made with something like 1018 cold rolled steel, the cut could cause the rod to curve as there is a lot of stress in material from the process. I would assume that the 4130 (?) was stress relieved possibly to some hardness so it probably is not an issue.
If the rod were made with something like 1018 cold rolled steel, the cut could cause the rod to curve as there is a lot of stress in material from the process. I would assume that the 4130 (?) was stress relieved possibly to some hardness so it probably is not an issue.